JPH0423783B2 - - Google Patents
Info
- Publication number
- JPH0423783B2 JPH0423783B2 JP57111036A JP11103682A JPH0423783B2 JP H0423783 B2 JPH0423783 B2 JP H0423783B2 JP 57111036 A JP57111036 A JP 57111036A JP 11103682 A JP11103682 A JP 11103682A JP H0423783 B2 JPH0423783 B2 JP H0423783B2
- Authority
- JP
- Japan
- Prior art keywords
- latent image
- color
- developer
- toner
- photoreceptor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 description 28
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000969 carrier Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910018110 Se—Te Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0105—Details of unit
- G03G15/0126—Details of unit using a solid developer
Description
【発明の詳細な説明】
(A) 発明の技術分野
本発明は、特に、第１現像に２成分磁気ブラシ
現像法、第２現像に１成分磁性トナー現像法を用
いた２色記録装置に係り、特に第１現像により潜
像形成媒体上にキヤリアごと付着した２成分現像
剤を除去するための除去手段を有する２色記録装
置に関するものである。[Detailed Description of the Invention] (A) Technical Field of the Invention The present invention particularly relates to a two-color recording device that uses a two-component magnetic brush development method for first development and a one-component magnetic toner development method for second development. In particular, the present invention relates to a two-color recording apparatus having a removing means for removing the two-component developer attached to the latent image forming medium along with the carrier during the first development.
(B) 従来技術と問題点
第１図は従来の２色記録装置を説明するための
図である。第２図は第１図に示す２色記録装置の
電位レベルを示す図である。(B) Prior Art and Problems FIG. 1 is a diagram for explaining a conventional two-color recording device. FIG. 2 is a diagram showing potential levels of the two-color recording apparatus shown in FIG. 1.
図において、感光体１上に初期帯電器２により
均一な帯電を行なう。このときの電位を第２図１
に示す如くVS1とする。次いで、露光手段３によ
り第２図に示す如く第１の色（Ａ色）に対応した
画像の露光を行う。このとき露光部の電位はほぼ
0Vまで減衰する。その後、第２図３に示す如く
第１の色（Ａ色）でトナーの電荷が正である現像
剤を用いる２成分磁気ブラシ現像器４を用い、現
像バイアス電圧VB1をVS1よりやや低い値に設定
して現像を行なう。すると、第２図３に示す如く
電荷の除去された部分にトナーが付着する。次い
で再帯電器５により第２図４に示す如く再帯電を
行ない、感光体１上の電位を上昇させるとともに
第１現像による未飽和電位ΔVを減少させる。こ
れは次に用いる１成分磁性トナー現像において、
十分に濃度の高い記録を得るための必要潜像強度
が、２成分磁気ブラシ現像法より大きいからであ
り、また１成分磁性トナー現像により、第１現像
の未飽部分に磁性トナーが付着しないようにした
ものである。再帯電により得られた感光体上の電
位をVS2とする。次いで、露光手段６により第２
図５に示す如く、第２の色（Ｂ色）に対応した画
像の露光を行う。このときも露光部の電位はほぼ
0Vまで減衰する。その後第２の色（Ｂ色）の１
成分磁性を用いる１成分磁性トナー現像器７を用
い現像バイアス電圧VB2をVS2とほぼ同じ値に設
定して現像を行なう。すると第２図６に示す如く
電荷の除去された部分にトナーが付着し、感光体
１上にＡ色とＢ色の２色トナー像が形成される。
その後、転写器８により記録紙９にトナー像を転
写する。次いで通常の電子写真プロセスと同じく
トナー像の定着、除電工程１０、クリーニング工
程１１を経て１工程が終了する。この方式により
良好な２色記録を行なうことができる。 In the figure, a photoreceptor 1 is uniformly charged by an initial charger 2. The potential at this time is shown in Figure 2.
Let V S1 be as shown in . Next, the exposure means 3 exposes an image corresponding to the first color (color A) as shown in FIG. At this time, the potential of the exposed part is approximately
Attenuates to 0V. Thereafter, as shown in FIG. 2, a two-component magnetic brush developer 4 using a developer with a positive toner charge is used for the first color (color A), and the developing bias voltage V B1 is set slightly lower than V S1 . Set the value and perform development. Then, as shown in FIG. 2, toner adheres to the portion from which the charge has been removed. Next, recharging is carried out by the recharging device 5 as shown in FIG. 2, thereby increasing the potential on the photoreceptor 1 and decreasing the unsaturated potential ΔV caused by the first development. In the next one-component magnetic toner development,
This is because the required latent image strength to obtain a sufficiently high-density recording is greater than that of the two-component magnetic brush development method, and one-component magnetic toner development prevents magnetic toner from adhering to unsaturated areas of the first development. This is what I did. Let the potential on the photoreceptor obtained by recharging be V S2 . Next, the exposure means 6 exposes the second
As shown in FIG. 5, an image corresponding to the second color (B color) is exposed. At this time, the potential of the exposed part is approximately
Attenuates to 0V. Then 1 of the second color (color B)
Development is performed using a one-component magnetic toner developer 7 using component magnetism, with the developing bias voltage V B2 set to approximately the same value as V S2 . Then, as shown in FIG. 2, toner adheres to the portion from which the charge has been removed, and a two-color toner image of A color and B color is formed on the photoreceptor 1.
Thereafter, the toner image is transferred onto recording paper 9 by transfer device 8 . Next, one process is completed through the fixing of the toner image, the static elimination process 10, and the cleaning process 11 in the same way as in a normal electrophotographic process. This method allows good two-color recording.
以上、２色記録装置について述べたが、上記方
式において第１現像に作用する２成分磁気ブラシ
現像器４の設定が適切でないとキヤリアごと現像
剤が感光体１上に付着することがある。例えば、
２成分磁気ブラシ現像器４と感光体１の距離が近
すぎる場合、あるいは、初期帯電電位の設定が高
すぎる場合などである。現像剤中のキヤリアは直
径が100〜200μm程度の磁性粉であるため、感光
体１上に付着したキヤリアは、次の１成分磁性ト
ナー現像器７の図示しないマグネツトローラに吸
収される。 The two-color recording apparatus has been described above, but in the above system, if the setting of the two-component magnetic brush developer 4 that acts on the first development is not appropriate, the developer may adhere to the photoreceptor 1 together with the carrier. for example,
This may occur if the distance between the two-component magnetic brush developer 4 and the photoreceptor 1 is too short, or if the initial charging potential is set too high. Since the carrier in the developer is a magnetic powder with a diameter of about 100 to 200 μm, the carrier attached to the photoreceptor 1 is absorbed by a not-shown magnet roller of the next one-component magnetic toner developer 7.
第３図は、従来より使用されている１成分磁性
トナー現像器７の構成を示すものである。磁性ト
ナーは、ブレード１２で穂の高さｈが規制され、
スリーブ１３あるいはマグネツトローラ１４の回
転により搬送される。ブレード１３とスリーブ１
４の間隔は100〜300μm程度に設定して現像を行
なう。従つて２成分現像剤が１成分磁性トナー現
像器７に混入すると、ブレード１３とスリーブ１
４の空隙に入り、めづまりを起し、トナーが搬送
されず、現像不良を起すことがある。また、１成
分磁性トナー現像を行なう場合は、スリーブ１３
と感光体１の距離を100〜300μm程度に設定する。
従つて、感光体１上にキヤリアごと付着した２成
分現像剤は１成分磁性トナー現像器７のスリーブ
１３と感光体１の空隙部につまり感光体１を損傷
させることがある。 FIG. 3 shows the structure of a conventional one-component magnetic toner developing device 7. As shown in FIG. The height h of the ears of magnetic toner is regulated by a blade 12,
It is conveyed by the rotation of the sleeve 13 or the magnet roller 14. Blade 13 and sleeve 1
Development is performed with the interval 4 set at approximately 100 to 300 μm. Therefore, when the two-component developer mixes into the one-component magnetic toner developer 7, the blade 13 and sleeve 1
4, the toner may get clogged, and the toner may not be conveyed, resulting in poor development. In addition, when performing one-component magnetic toner development, the sleeve 13
The distance between the photoreceptor 1 and the photoreceptor 1 is set to about 100 to 300 μm.
Therefore, the two-component developer that has adhered to the photoreceptor 1 together with the carrier may get stuck in the gap between the sleeve 13 of the one-component magnetic toner developer 7 and the photoreceptor 1, thereby damaging the photoreceptor 1.
(C) 発明の目的
本発明の目的は、前述の欠点に鑑み、第１現像
器に用いられる２成分現像剤が第２現像器内に混
入するのを防止できる２色記録装置を提供するこ
とにある。(C) Object of the Invention In view of the above-mentioned drawbacks, an object of the present invention is to provide a two-color recording device that can prevent the two-component developer used in the first developing device from being mixed into the second developing device. It is in.
(D) 発明の構成
そして、この目的は、本発明によれば、潜像形
成媒体上を均一に全面帯電する帯電手段と、該潜
像形成媒体上に第１の色に対応した潜像を形成す
る第１の露光手段と、該第１の露光手段により形
成された潜像を、第１の色のトナーとキヤリアか
ら成る２成分現像剤を用いた磁気ブラシ現像を行
なう第１の現像手段と、該潜像形成媒体上に第２
の色に対応した潜像を形成する第２の露光手段
と、該第１の現像手段による現像像が該潜像形成
媒体上に形成されている状態で、該第２の露光手
段により形成された潜像を第２の色のトナーを用
いて現像を行なう第２の現像手段と、該第１の現
像手段の該潜像形成媒体移動方向後段で、且つ該
第２の現像手段の該潜像形成媒体移動方向前段
の、前記第１と第２の現像手段との間に設けら
れ、前記第１の現像手段から流出し、該潜像形成
媒体上に付着したキヤリアを磁気的に吸引して除
去する吸引除去手段と、を備えて成ることを特徴
とする２色記録装置を提供することにより達成さ
れる。(D) Structure of the Invention According to the present invention, the present invention provides a charging means for uniformly charging the entire surface of a latent image forming medium, and a latent image corresponding to a first color on the latent image forming medium. a first exposure means for forming a latent image, and a first developing means for performing magnetic brush development on the latent image formed by the first exposure means using a two-component developer consisting of a first color toner and a carrier. and a second layer on the latent image forming medium.
a second exposure means for forming a latent image corresponding to the color of the second exposure means, and a developed image formed by the first developing means on the latent image forming medium; a second developing means for developing a latent image using a second color toner; and a second developing means for developing a latent image using a second color toner; It is provided between the first and second developing means at the upstream stage in the image forming medium moving direction, and magnetically attracts the carrier flowing out from the first developing means and adhering to the latent image forming medium. This is achieved by providing a two-color recording device characterized in that it is equipped with a suction removal means for removing the two-color image.
(E) 発明の実施例
以下、本発明の実施例を図面を用いて詳細に説
明する。第４図は、本発明にかかる２色記録装置
に用いる現像剤除去装置の概略を示す図である。(E) Embodiments of the invention Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. FIG. 4 is a diagram schematically showing a developer removing device used in the two-color recording apparatus according to the present invention.
図において、非磁性体であるスリーブ１５の内
部にマグネツトローラ１６を設け、スリーブ１５
が回転できる構造である。上記現像剤除去装置を
感光体１とわずか空隙を設けて設置すると、感光
体１上に付着した２成分現像剤、つまり、トナー
がその周囲に付着したキヤリアは、現像剤除去装
置のマグネツトローラ１６の磁力に引かれ、スリ
ーブ１５上に吸引される。スリーブ１５を回転さ
せることにより吸引されたキヤリアは、図中の矢
印方向に移動する。マグネツトローラ１６の一部
に非着磁領域を設けておくと、スリーブ上のキヤ
リアは、非着磁領域でスリーブ１５から離れて除
去することができる。第４図に示す現像剤除去装
置を第１図に示した２色記録装置の２成分磁気ブ
ラシ現像器４と１成分磁気トナー現像器７の間に
設置すれば、第１現像によつて感光体１上にキヤ
リアが付着する場合が生じても、現像剤除去装置
によりこのキヤリアを除去することができるの
で、１成分磁性トナー現像器内に混入することは
ない。従つて現像不良、あるいは感光ドラムの損
傷が生じることはなく常に良好な印字状態を保つ
ことができる。 In the figure, a magnet roller 16 is provided inside the sleeve 15 which is a non-magnetic material, and the sleeve 15 is
It has a structure that allows it to rotate. When the above-mentioned developer removing device is installed with a slight gap from the photoconductor 1, the two-component developer attached to the photoconductor 1, that is, the carrier with toner attached around it, is transferred to the magnetic roller of the developer removing device. 16 and is attracted onto the sleeve 15. The carrier sucked by rotating the sleeve 15 moves in the direction of the arrow in the figure. If a non-magnetized area is provided in a part of the magnet roller 16, the carrier on the sleeve can be separated from the sleeve 15 in the non-magnetized area and removed. If the developer removing device shown in FIG. 4 is installed between the two-component magnetic brush developer 4 and the one-component magnetic toner developer 7 of the two-color recording apparatus shown in FIG. Even if carriers adhere to the body 1, the carriers can be removed by the developer removal device, so that they will not be mixed into the one-component magnetic toner developing device. Therefore, there is no development failure or damage to the photosensitive drum, and a good printing condition can always be maintained.
なお、現像剤除去装置の設置場所は、第１現像
と再帯電の間、再帯電と第２露光の間、第２露光
と第２現像の間のいずれでもよい。 The developer removing device may be installed at any location between first development and recharging, between recharging and second exposure, or between second exposure and second development.
次に現像剤除去装置を用いた２色記録装置の実
施例を以下に述べる。感光体１としてSe−Teド
ラムを用い、初期帯電器２により500V程度の均
一な帯電を行なう。次いで、露光手段により第１
の色に対応したネガ露光を行ない潜像を形成した
後、２成分磁気ブラシ現像器４により赤色で正電
荷を持つ２成分磁気ブラシ現像による反転現像を
行なう。２成分磁気ブラシ現像器４に印加するバ
イアス電圧は300〜400Vとする。これにより、感
光体１上に赤色のトナー像が形成される。次い
で、再帯電器５により感光体１上の電位を800V
まで上昇させた後、露光手段６により第２の色に
対応したネガ露光を行ない潜像を形成する。次い
で、第４図に示す現像剤除去装置をスリーブ１５
と感光体１との距離が0.3〜1.0mm程度となるよう
に設置する。スリーブ１５はアルミとし、マグネ
ツトローラ１６の磁力の強さは500〜1200ガウス
程度となるようにする。２成分磁気ブラシ現像器
４から流出し、その周囲にトナーの付着したキヤ
リアが感光体１に付着しても、この現像剤除去装
置により感光体１から除去されるため、次の１成
分磁性トナー現像器７内に混入することはない。
また、スリーブ１５と感光体１が非接触であるた
め、感光体１上の第１トナー像および潜像が破壊
されることはない。次いで、１成分磁性トナー現
像器７により黒色の磁性トナーによる反転現像を
行なう。１成分磁性トナー現像器７に印加するバ
イアス電圧は800V程度とする。以上の工程によ
り感光体１上に赤と黒の良好な２色のトナー像が
形成される。その後、記録紙９にトナー像を転写
し、熱定着を行ない良好な２色記録を行なうこと
ができる。 Next, an example of a two-color recording apparatus using a developer removing device will be described below. A Se-Te drum is used as the photoreceptor 1, and an initial charger 2 uniformly charges it to about 500V. Next, the exposure means exposes the first
After negative exposure corresponding to the color is performed to form a latent image, a two-component magnetic brush developer 4 performs reversal development using two-component magnetic brush development with a positive charge in red. The bias voltage applied to the two-component magnetic brush developing device 4 is 300 to 400V. As a result, a red toner image is formed on the photoreceptor 1. Next, the potential on the photoreceptor 1 is set to 800V by the recharger 5.
After the exposure means 6 performs negative exposure corresponding to the second color, a latent image is formed. Next, the developer removing device shown in FIG.
and photoreceptor 1 so that the distance between them is approximately 0.3 to 1.0 mm. The sleeve 15 is made of aluminum, and the magnetic force of the magnet roller 16 is set to about 500 to 1200 Gauss. Even if the carrier that flows out from the two-component magnetic brush developing device 4 and has toner attached around it adheres to the photoreceptor 1, it is removed from the photoreceptor 1 by this developer removal device, so that the next one-component magnetic toner is removed. It does not get mixed into the developing device 7.
Further, since the sleeve 15 and the photoreceptor 1 are not in contact with each other, the first toner image and the latent image on the photoreceptor 1 are not destroyed. Next, a one-component magnetic toner developer 7 performs reversal development using black magnetic toner. The bias voltage applied to the one-component magnetic toner developer 7 is approximately 800V. Through the above steps, good two-color toner images of red and black are formed on the photoreceptor 1. Thereafter, the toner image is transferred to the recording paper 9 and thermally fixed, thereby making it possible to perform good two-color recording.
以上述べた実施例によれば、キヤリアとトナー
とを含む２成分現像剤が１成分現像器に混入する
ことがないので、常に良好な現像を行なうことが
でき、また感光体に傷が生じることもなく、良好
な印字状態を保つことができる。 According to the embodiments described above, since the two-component developer containing the carrier and toner does not mix into the one-component developing device, good development can always be performed and there is no possibility that the photoreceptor will be damaged. It is possible to maintain a good printing condition without any problems.
第５図は、本発明にかかる２色記録装置の他の
実施例を示す図である。第４図の現像剤除去装置
と異なる点は、非磁性体であるスリーブ１５の内
部に、全周にわたり着磁されたマグネツトローラ
１８を設けて、スリーブ１５上に現像剤の穂を形
成させたことである。この穂の厚まはブレード１
７により0.2〜１mm程度に規定する。このような
現像剤除去装置を用いても、先に述べた実施例と
同等の効果が得られる。 FIG. 5 is a diagram showing another embodiment of the two-color recording apparatus according to the present invention. The difference from the developer removing device shown in FIG. 4 is that a magnetic roller 18 that is magnetized over the entire circumference is provided inside the sleeve 15, which is a non-magnetic material, to form spikes of developer on the sleeve 15. That's what happened. The thickness of this ear is blade 1
7, it is specified to be about 0.2 to 1 mm. Even if such a developer removing device is used, the same effects as those of the above-mentioned embodiments can be obtained.
さらに、第６図は本発明にかかる２色記録装置
の他の実施例を示すものである。現像剤除去装置
として感光体１の近傍にマグネツト１９のみを設
置させたものである。この場合も、感光体１上に
付着したキヤリアは、マグネツト１９に吸引され
て感光体１上から除去させることができ、先に述
べた実施例と同等の効果が得られる。しかし、こ
の実施例では、長時間の記録を行なうとマグネツ
ト１９にキヤリアが積層して来るため適宜マグネ
ツト１９上のキヤリアを除去する必要がある。 Furthermore, FIG. 6 shows another embodiment of the two-color recording apparatus according to the present invention. Only a magnet 19 is installed near the photoreceptor 1 as a developer removing device. In this case as well, the carrier attached to the photoreceptor 1 can be removed from the photoreceptor 1 by being attracted by the magnet 19, and the same effect as in the previously described embodiment can be obtained. However, in this embodiment, when recording is performed for a long time, carriers accumulate on the magnet 19, so it is necessary to remove the carriers on the magnet 19 as appropriate.
(F) 発明の効果
以上説明したように、本発明によれば、第１現
像器である２成分磁気ブラシ現像器から流出し、
潜像形成媒体である感光体に付着した、その周囲
にトナーの付着しているキヤリアが第２現像器内
に混入することがないので、常に良好な現像を行
なうことができるとともに、感光体に損傷を与え
ることなく、良好な印字状態を保持することがで
きる。(F) Effects of the Invention As explained above, according to the present invention, the flow from the two-component magnetic brush developing device, which is the first developing device,
Since the carrier with toner attached to the photoreceptor, which is the latent image forming medium, does not get mixed into the second developing device, it is possible to always perform good development, and also to keep the toner on the photoreceptor. A good printing condition can be maintained without causing damage.
第１図は２色記録装置を説明するための図、第
２図は第１図に示す２色記録装置の電位レベルを
示す図、第３図は１成分磁性トナー現像器を説明
するための図、第４図、第５図、第６図は本発明
にかかる２色記録装置に用いる現像剤除去装置を
説明するための図である。
図において、１は感光体、２は初期帯電器、
３，６は露光手段、４は２成分磁気ブラシ現像
器、５は再帯電器、７は１成分磁性トナー現像
器、８は転写手段、９は記録紙、１０は除電工
程、１１はクリーニング工程、１２，１７はブレ
ード、１３，１５はスリーブ、１４，１６，１８
はマグネツトローラである。
FIG. 1 is a diagram for explaining a two-color recording device, FIG. 2 is a diagram showing potential levels of the two-color recording device shown in FIG. 1, and FIG. 3 is a diagram for explaining a one-component magnetic toner developer. 4, 5, and 6 are diagrams for explaining a developer removing device used in a two-color recording apparatus according to the present invention. In the figure, 1 is a photoreceptor, 2 is an initial charger,
3 and 6 are exposure means, 4 is a two-component magnetic brush developer, 5 is a recharger, 7 is a one-component magnetic toner developer, 8 is a transfer means, 9 is a recording paper, 10 is a static elimination process, and 11 is a cleaning process , 12, 17 are blades, 13, 15 are sleeves, 14, 16, 18
is a magnetic roller.
Claims (1)
段と、 該潜像形成媒体上に第１の色に対応した潜像を
形成する第１の露光手段と、 該第１の露光手段により形成された潜像を、第
１の色のトナーとキヤリアから成る２成分現像剤
を用いた磁気ブラシ現像を行なう第１の現像手段
と、 該潜像形成媒体上に第２の色に対応した潜像を
形成する第２の露光手段と、 該第１の現像手段により現像像が該潜像形成媒
体上に形成されている状態で、該第２の露光手段
により形成された潜像を第２の色のトナーを用い
て現像を行なう第２の現像手段と、 該第１の現像手段の該潜像形成媒体移動方向後
段で、且つ該第２の現像手段の該潜像形成媒体移
動方向前段の、前記第１と第２の現像手段との間
に設けられ、前記第１の現像手段から流出し、該
潜像形成媒体上に付着したキヤリアを磁気的に吸
引して除去する吸引除去手段と、 を備えて成ることを特徴とする２色記録装置。[Scope of Claims] 1. Charging means for uniformly charging the entire surface of a latent image forming medium; a first exposing means for forming a latent image corresponding to a first color on the latent image forming medium; a first developing means that develops the latent image formed by the first exposure means with a magnetic brush using a two-component developer consisting of a first color toner and a carrier; a second exposure means for forming a latent image corresponding to the color of the latent image; a second developing means for developing a latent image using a second color toner; It is provided between the first and second developing means at the upstream stage in the image forming medium moving direction, and magnetically attracts the carrier flowing out from the first developing means and adhering to the latent image forming medium. A two-color recording device characterized by comprising: a suction removal means for removing the liquid by using the suction and removal means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57111036A JPS592056A (en) | 1982-06-28 | 1982-06-28 | Two-color recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57111036A JPS592056A (en) | 1982-06-28 | 1982-06-28 | Two-color recording apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS592056A JPS592056A (en) | 1984-01-07 |
| JPH0423783B2 true JPH0423783B2 (en) | 1992-04-23 |
Family
ID=14550770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57111036A Granted JPS592056A (en) | 1982-06-28 | 1982-06-28 | Two-color recording apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592056A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2547787B2 (en) * | 1987-08-27 | 1996-10-23 | キヤノン株式会社 | Multicolor image forming device |
| JP3733301B2 (en) | 2001-06-29 | 2006-01-11 | キヤノン株式会社 | Image forming apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566250A (en) * | 1979-06-29 | 1981-01-22 | Ricoh Co Ltd | Two-color electrophotographic method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158631U (en) * | 1978-04-27 | 1979-11-06 | ||
| JPS5591542U (en) * | 1978-12-15 | 1980-06-24 |
-
1982
- 1982-06-28 JP JP57111036A patent/JPS592056A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566250A (en) * | 1979-06-29 | 1981-01-22 | Ricoh Co Ltd | Two-color electrophotographic method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS592056A (en) | 1984-01-07 |
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